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Mountain Hardwear Lamina 45°

rated 4.5 of 5 stars
photo: Mountain Hardwear Lamina 45° warm weather synthetic sleeping bag

I have used this bag on several trips through the summer months while sleeping in lean-to's and tents. I will say this it is a very nice bag. Also it's lighter weight than most synthetic sleeping bags.

It kept me very warm in summer temps I was a tad chilly once but the temp dropped to the low 40's high 30's but it was nothing drastic I just threw on my t-shirt, socks and I was fine. It's very spacious inside the bag as I like to be able to move around a bit it has the perfect size foot box so you are not trying to keep a large area warm.

It dries quickly very when it gets damp from condensation and or sweet. I feel this bag is a little shorter than your standard mid range bag so if you're on the tall side be aware of that before you buy it.

I also have a Lamina -15 and this bag will slide right inside of that for a liner but I hope I never need to do that. Wow, would it have to be cold out to do that.

The zippers are strong, durable and don't catch the bag when you are zipping or unzipping it very much. It compresses down pretty small and lofts back up quickly and it is very light weight. Feel it is made with quality and durability in mind while still staying light weight.

Mountain Hardwear is a USA based company so for me that is another plus as well. The bag is made with several small loops out side so you can attach it to your sleeping pad or hang it up to dry and it has several loops so you can turn it inside out to hang it to dry horizontally or vertically I see no real drawbacks to this sleeping bag for me it does its job quite well.

I would definitely recommend this sleeping bag to a friend.

Design: Mummy
Fill: Thermic Micro
Temperature Rating: +45 F
Weight: 1 lb. 12 oz.
Price Paid: $75

Light and small for a synthetic bag. Trim cut but not too small for my wide shoulders. Despite all the reviews stating this goes below 45° I was chilly without a down jacket around 40-45 and I sleep warm.


  • Light
  • Compact
  • Can get wet
  • Well made


  • Felt more like 50+ degree bag

Like everything about the bag except I got cold around 45 degrees without a light down jacket. I usually sleep warm. Might have been the altitude affecting my physiology (9000ft).

Source: bought it new

I live in Alabama. The climate here is moderate. It can get quite cold here at times, but for a large part of the year this bag is perfect.

I recently went on a camping trip and the temperature dipped down to about 32 degrees. I slept like a baby thanks to the Lamina 45 and my Therm-a-Rest Prolite 4 (though I do tend to sleep warm).

I'm a bigger guy (24" broad from shoulder to shoulder). Anyone larger than this may find the bag a little tight.

I love this bag!

Design: mummy
Fill: synthetic
Temperature Rating: 45 degrees F.
Weight: 27.82 oz
Price Paid: $34

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Short Regular Long
Price MSRP: $120.00
Historic Range: $62.93-$180.00
Reviewers Paid: $34.00-$75.00
Weight 1 lb 10 oz / 731 g 1 lb 12 oz / 788 g 1 lb 14 oz / 850 g
Fill Weight 10 oz / 275 g 12 oz / 331 g 14 oz / 396 g
Loft 2 in / 6 cm 2 in / 6 cm 2 in / 6 cm
Temperature Rating 45 F / 7.2 C 45 F / 7.2 C 45 F / 7.2 C
Fill Thermic Micro Synthetic Thermic Micro Synthetic Thermic Micro Synthetic
Shape Mummy Mummy Mummy
Max User Height 5 ft 6 in / 170 cm 6 ft 0 in / 180 cm 6 ft 6 in / 200 cm
Shoulder Girth 60 in / 152 cm 62 in / 157 cm 64 in / 163 cm
Hip Girth 56 in / 142 cm 58 in / 147 cm 60 in / 152 cm
Foot Girth 36 in / 91 cm 38 in / 97 cm 40 in / 100 cm
Price $110.00 USD $120.00 USD $130.00 USD
Product Details from Mountain Hardwear »